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Services - Geoid Repository

Regional Models

Switzerland and Liechtenstein (CHGEO2004/CHGEO2004Q)

  Author: U. Marti     Created: 2004    Resp: U. Marti  
      Status: PRIVATE    
Two Datasets of the Geoid (CHGeo2004) and the Quasi-Geoid (CHGeo2004Q) for Switzerland.It is still the official geoid model to be used in Switzerland and in Liechtenstein. The solution is relative to ETRS89 (GRS80-Ellipsoid) with a resolution > of 30". The height reference system is LHN95. Further information of the Format is included in the Header of the grids. Compared to the previous version (CHGeo98) a stronger weight was put on gravity and GPS/leveling measurements compared to astro-geodetic data and a global model (EGM96) was used as a reference. The model CHGeo2004 is sold for commercial use but can be made available for free for pure scientific purposes.

U. Marti (2007). Comparison of high precision geoid models in Switzerland. In: P. Tregonig, C. Rizos (eds), Dynamic Planet: Monitoring and Understanding a Dynamic Planet with Geodetic and Oceanographic Tools, IAG Symposia Series, vol. 130, pp. 377-382, Springer Verlag.